| Kardzhali to Ratzeburg | 1,070.67 mi (1,723.08 km) |
| Kardzhali to Raubling | 775.41 mi (1,247.90 km) |
| Kardzhali to Rauenberg | 960.67 mi (1,546.05 km) |
| Kardzhali to Raunheim | 994.98 mi (1,601.26 km) |
| Kardzhali to Ravensburg | 879.67 mi (1,415.69 km) |
| Kardzhali to Recke | 1,108.14 mi (1,783.38 km) |
| Kardzhali to Recklinghausen | 1,098.25 mi (1,767.46 km) |
| Kardzhali to Regen | 778.66 mi (1,253.13 km) |
| Kardzhali to Regensburg | 819.79 mi (1,319.33 km) |
| Kardzhali to Regenstauf | 822.19 mi (1,323.19 km) |
| Kardzhali to Rehau | 871.87 mi (1,403.15 km) |
| Kardzhali to Rehburg-Loccum | 1,061.07 mi (1,707.63 km) |
| Kardzhali to Rehlingen-Siersburg | 1,046.15 mi (1,683.61 km) |
| Kardzhali to Reichelsheim | 969.71 mi (1,560.59 km) |
| Kardzhali to Reichenbach/Vogtland | 878.05 mi (1,413.09 km) |
